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let and const Exercise
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let and const Exercise
In this exercise, you’ll refactor some ES5 code into ES2015.
ES5 Global Constants
var PI = 3.14; PI = 42; // stop me from doing this!
JavaScript
ES2015 Global Constants
/* Write an ES2015 Version */
JavaScript
Quiz
What is the difference between var and let?
What is the difference between var and const?
What is the difference between  and ?
What is hoisting?
Solution